Does a new day on Earth begin at the international day line?

The date line is also known as the international date line or date line. The time of sunrise in various parts of the earth varies from east to west depending on the location. Those who sail eastward to meet the sun will feel that the days are getting shorter; People who sail west to catch the sun will feel like the days are getting longer.

To adjust for these differences, the 1884 International Council of Longitude used the meridian of 180 degrees of longitude as the boundary for the date change. In order to accommodate the unity of administrative regions, the date line is not exactly divided along the meridian of 180 degrees, but bypasses a number of islands and straits: from north to south through the Bering Strait and the western tip of the Aleutian Islands, Samoa, Fiji, Tonga and other islands to the east of New Zealand.

One day shall be subtracted when crossing the line to the east, if it is noon on the second day, and one day shall be added when crossing the line to the west, if it is noon on the second day.

The new day does start from the international date line, this line is fixed, and there is a changing date line, which is the meridian where the 24 o'clock is located, which generally becomes the local date line, and the local date line moves from east to west at a speed of 15 degrees per hour, so the area of the new day slowly becomes larger, west of the international date line, east of the local date line is a new day, east of the international date line, and west of the local date line is the old day.

No, a new day on Earth is bounded by the meridian of 180 degrees and the meridian at 0 local time. And a new day on Earth starts at the 0 hour meridian. Not an international date line.

As long as there is no date change involved.

CallThe east side is indeed forever earlierBut if you don't change the daily line, there will be some laughing and crying things.

The earliest Magellan.

Traveling around the world, 3 boats finally went home on one boat (Magellan himself hung up), the sailors on the boat knotted the day and wrote a nautical diary, and finally handed it over to the king to report the route, and the result was a pair, directly missing one day. Liquid Bridge Kai.

So, if you go all the way east, set up points at short intervals, each point earlier than the other, and go around the earth to eliminate itGet back to where you areand you'll find that you've got a straight extra day; Otherwise, it is directly one day less. This is completely unreasonable!

Therefore, it is necessary to stipulate a date line, one day must be deducted to return to the old day when crossing to the east, and one day must be added to the new day when crossing to the west.

Earth Day is celebrated on April 22 every year, which is a holiday dedicated to world environmental protection, aiming to raise public awareness of existing environmental problems and mobilize people to participate in environmental protection movements to improve the overall environment of the earth through green and low-carbon living.

Earth Day was launched in 1970 by Gaylord Nelson and Dennis Hayes. Today, Earth Day is celebrated in 192 countries around the world, with more than 1 billion people participating each year, making it the world's largest environmental holiday. Zhou Jinfeng, vice chairman and secretary general of the China Biodiversity Conservation and Green Development Association, said:

This event can be said to be the beginning of modern environmental protection activities, which promoted Western countries to pay attention to the problem of environmental pollution and destruction, which is of milestone significance. At the same time, the event also played a positive role in promoting the convening of the first United Nations Conference on the Human Environment in 1972, making mankind fully aware of the important connotation of 'only one earth'. ”

Since the 90s of the 20th century, China has held Earth Day activities on April 22 every year. On April 22, 1970, the United States held the first Earth Day event, which was the first large-scale mass environmental protection activity in the history of mankind.